National Bank Open: Sho Shimabukuro vs Marin Cilic

Platform comparison

Market context

Sho Shimabukuro and Marin Cilic were scheduled to meet in the National Bank Open in Montreal on 2 August, with listed start times around 22:00 UTC and 6:00 PM ET, although live listings suggest the match timing has already shifted with the tournament underway.[1][3][13] The market’s 0% YES implies the contract is pricing almost no chance that Shimabukuro advances, despite pre-match tennis models and match pages giving Cilic a clear edge rather than a shutout.[6][17][20]

That is consistent with how short-dated tennis markets behave when the favourite is established but not overwhelming: Cilic was quoted around a 63% projected win probability by Tennis.com, while other pre-match models put him closer to the mid-50s, and the pair had no prior head-to-head record to anchor a stronger narrative either way.[6][19][20] On-chain, the key point is settlement is binary in USDC terms unless the match is not completed or is delayed beyond seven days, in which case the market resolves 50-50; that makes timing risk, not just match quality, relevant to the price.

Traders should watch for ATP draw updates, official tournament scheduling changes, and any injury or withdrawal reports, because those are the main triggers that can convert a live tennis market into a no-contest or delayed-settlement outcome.[5][6][13] If broader crypto risk assets move sharply at the same time, that can affect liquidity and positioning in the prediction market even though the outcome itself is sports-driven; BTC and ETH spot direction, funding, and large wallet flows matter more for pricing depth than for the match logic.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reads National Bank Open: Sho Shimabukuro vs Marin Cilic on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

How does UMA secure the resolution?

The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.

How volatile are crypto prediction markets?

Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.

Which crypto markets exist on Polymarket?

Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.

Are crypto prediction markets taxable in the US?

In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.